Family name វ៉ាន់សាយ (វ៉ាន់សាយ 
) , around the world, is an extremely rare cognomen. The last name វ៉ាន់សាយ is habitual in South-eastern Asia, particularly Cambodia, where it is a very rare surname. More frequently, វ៉ាន់សាយ is the forename as well as the last name.